CN107254608A - High-strength high temperature-resistant alloy wire - Google Patents
High-strength high temperature-resistant alloy wire Download PDFInfo
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- CN107254608A CN107254608A CN201710264368.2A CN201710264368A CN107254608A CN 107254608 A CN107254608 A CN 107254608A CN 201710264368 A CN201710264368 A CN 201710264368A CN 107254608 A CN107254608 A CN 107254608A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Abstract
The present invention discloses a kind of high-strength high temperature-resistant alloy wire, comprises the following steps：Al99.70 and Al99.85 remelted aluminum ingots are applied in combination, aluminium melting furnace melting is put into；By aluminium liquid metaideophone after melting to holding furnace, sampling is quickly analyzed with direct-reading spectrometer after stirring, Al, Si, Fe and Mn, Cr, Ti, V content in detection solution；Aluminium boron intermediate alloy, aluminium cerium mischmetal intermediate alloy are added in aluminium liquid after melting, control heat preserving furnace aluminum liquid temperature is artificial to stir simultaneously electromagnetic agitation 20 minutes at 740 ± 10 DEG C, obtains alloy aluminium liquid；Make carrier with 99.996% high pure nitrogen when temperature of aluminum liquid reaches 750 ± 10 DEG C, efficient injection refining agent is passed through in holding furnace in melt and refined, reach the purified treatments such as the degasification of alloy aluminium liquid, removal of impurities.The present invention reduces needle-like crystalline substance, increases globular crystal, and conductor conductance just can reach 62.5 63.0%IACS, and tensile strength reaches 160 200MPa.
Description
Technical field
The present invention relates to a kind of alloy wire, more particularly to a kind of high-strength high temperature-resistant alloy wire.
Background technology
Existing conductor material can be divided into fine aluminium and the class of aluminium alloy 2, and backing material is generally steel strand wires or other composites.
At present, domestic most widely used, technology most ripe overhead power transmission conducting wire is steel-cored aluminium strand.Its conductor material is using industry
Fine aluminium, major mechanical, electricity function index are respectively：The tensile strength of aluminium single line is in 160 ~ 200MPa, 20 DEG C of D.C. resistance
Rate is not more than 28.264n Ω .m（Conductance is 61%IACS）.
Shown according to grid power transmission circuit using statistics, conductor conductance is in 61%IACS, and grid loss is electric up to transmission
More than the 8.9% of amount.It is if resistivity can be reduced by improving the methods such as material and processing technology, aluminium conductor conductance is original
61%IACS bring up to 62.5-63.0% IACS, can not only reduce transmission line of electricity line loss and energy consumption, and can improve and lead
The current-carrying capacity and efficiency of transmission of line.Counted according to related data, conductor conductance improves 1%, and it is left that transmission line loss can reduce by 1%
It is right.Pursued energy-conservation, efficient today advocating, high conductivity wire turns into current overhead power transmission conducting wire as energy-saving wire, especially
It is one of high pressure and extra-high voltage overhead power transmission conducting wire developing direction.
The content of the invention
The present invention provides a kind of high-strength high temperature-resistant alloy wire, and this high-strength high temperature-resistant alloy wire is selected from raw material
Set about, there is provided a kind of existing high conductivity, the aluminium bar of production aerial condutor being adapted to again with conductor lines base-aluminium bar production technology
And its hard-drawn aluminium wire.The performance indications of wherein aluminum steel depend primarily on the index of aluminium bar, and using such a high conductivity aluminium bar, conductor can
Routinely drawing process is produced, and needs not move through annealing process processing, it is not required that change wire drawing just special with mold technique
Aluminium bar outside dimension（Such as Φ 12mm, Φ 15mm）, conductor conductance just can reach 62.5-63.0% IACS, and tensile strength reaches
To 160-200MPa, meet the requirement of aerial condutor hard-drawn aluminium wire.The production process of high conductivity wire is simplified, this is reduced
The production cost of class wire, drastically increases the production efficiency and qualification rate of high conductivity conductor.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of high-strength high temperature-resistant alloy wire, the height
Intensity high-temperature alloy wire rod is obtained by following steps：
Step 1: Al99.70 and Al99.85 remelted aluminum ingots are applied in combination, temperature of aluminum liquid in aluminium melting furnace melting, control stove is put into
≤ 760 DEG C, wherein Al99.70 aluminium ingots accounting is that 20 ~ 40%, Al99.85 aluminium ingots accounting is 60 ~ 80%；
Step 2: aluminium liquid metaideophone is to holding furnace after the melting that step one is obtained, sampling is entered with direct-reading spectrometer after stirring
Al, Si, Fe and Mn, Cr, Ti, V content in the quick analysis of row, detection solution；
Step 3: adding aluminium boron intermediate alloy, aluminium cerium mischmetal intermediate alloy in aluminium liquid after melting, heat preserving furnace aluminum liquid temperature is controlled
At 740 ± 10 DEG C, artificial stirring and electromagnetic agitation 20 minutes, obtain Al >=99.82wt% in alloy aluminium liquid, this alloy aluminium liquid,
Si≤0.04wt%、 Fe 0.08~0.12wt%、（Mn+Cr+Ti+V）0.01 ~ 0.05% wt% of wt%, Ce of ＜ 0.01, and make Fe/
Si≥2.0；
Step 4: completing after step 3, carrier is made with 99.996% high pure nitrogen when temperature of aluminum liquid reaches 750 ± 10 DEG C, will
Efficient injection refining agent is passed through in holding furnace to be refined in melt, reaches the purified treatments such as the degasification of alloy aluminium liquid, removal of impurities；
Step 5: after the completion of step 4, aluminium liquid stands 5 ~ 10 minutes, opens holding furnace and skims and skimmed, clears up and float over conjunction
Aluminium slag on golden aluminium liquid surface；
Step 6: alloy aluminium liquid is sampled analysis after step 5 is removed the gred, if each component content deviates setting value,
Further add corresponding component so that Al >=99.82wt%, Si≤0.04wt%, Fe 0.08-0.12wt%,（Mn+Cr+Ti+
V）0.01 ~ 0.05% wt% of wt%, Ce of ＜ 0.01, and make Fe/ Si >=2.0；
Step 7: after step 6, aluminium liquid stands 30 ~ 40 minutes in holding furnace, when temperature reaches 740 ± 10 DEG C, comes out of the stove, aluminium liquid
Out enter online depassing unit and filter by chute from holding furnace, carry out external refining, degasification again removes the gred；
Step 8: the clean alloy aluminium liquid after being refined again to step 7 carries out direct casting, cast temperature is controlled 690 ~ 700
DEG C, cast using level casting mode, while according to the diameter range for drawing monofilament, controlling speed, the cooling of crystallizing wheel
Water pressure, it is 520 ~ 550 DEG C to make the strand temperature come out to from crystallizing wheel on access bridge；
Step 9: strand made from rapid eight is carried out into alignment, cooling, control the strand temperature into before rolling to be maintained at 470-490 DEG C, roll
Process processed is lubricated and cooled down to roll and aluminium bar using emulsion, adjustment emulsion pressure and flow, height is led aluminium bar whole
Roll temperature≤300 DEG C；
Step 10: the high conductivity aluminium bar come out with water or dilute emulsion to milling train quench-quick cooling treatment, control
Aluminium rod surface temperature≤60 DEG C；
Step 11: natural cooling obtains the high-strength high temperature-resistant alloy wire after aluminium bar cleaning.
Further improved technical scheme is as follows in above-mentioned technical proposal：
1. in such scheme, control refining agent is blown into when being refined in the step 4 speed and the pressure of nitrogen, when making refining
Between control at 15 ~ 20 minutes, nitrogen pressure is controlled in 10 ~ 15KPa.
2. in such scheme, aluminium boron intermediate alloy host element Boron contents are 4.5 ~ 5.5wt%, the aluminium in the step 3
Cerium mischmetal intermediate alloy host element cerium content is 9 ~ 11 wt%.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. high-strength high temperature-resistant alloy wire of the present invention, its aluminium cerium mischmetal alloy refinement tissue crystal grain and dendrite, change in melt
Si, Fe etc. form, reduce needle-like crystalline substance, increase the roughening of globular crystal, effectively control rafifinal arborescent structure, improve rafifinal
Mechanical performance, improves the tensile strength and elongation of aluminium conductor, height is led aluminium bar this two indexs and respectively reaches：Tensile strength
110 ~ 130 MPa, elongation >=6.5% meets hard-drawn aluminum wire requirement.High conductivity aluminium conductor low strength is solved, does not reach frame
The problem of hollow wire is required with duralumin line standard.
2. high-strength high temperature-resistant alloy wire of the present invention, using the method for preferred raw material, further improving will
Al99.70 and Al99.85 remelted aluminum ingots are applied in combination, not only improve using single rafifinal coarse grains, processing retrospective it is poor,
The shortcoming of low intensity, makes aluminium conductor keep horniness aluminum alloy capability；And solve using single commercial-purity aluminium, due to the purity problem of aluminium
20 DEG C of resistivity of aluminium bar are caused to be only capable of in 27.90 ~ 28.01 n Ω .m（Conductance 61.79 ~ 61.55）The limitation of scope, is improved
The purity and the electric property of aluminium bar of aluminium.Height leads aluminium bar（A diameter of 9.5mm）Electrical performance indexes can respectively reach：（1）20
The n Ω .m of DEG C resistivity≤27.53（The %IACS of conductance >=62.63）；（2）20 DEG C of resistivity：≤27.32 nΩ.m（Conductance
≥63.11 %IACS）.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment：A kind of high-strength high temperature-resistant alloy wire, the high-strength high temperature-resistant alloy wire is obtained by following steps：
Step 1: Al99.70 and Al99.85 remelted aluminum ingots are applied in combination, temperature of aluminum liquid in aluminium melting furnace melting, control stove is put into
≤ 760 DEG C, wherein Al99.70 aluminium ingots accounting is that 20 ~ 40%, Al99.85 aluminium ingots accounting is 60 ~ 80%；
Step 2: aluminium liquid metaideophone is to holding furnace after the melting that step one is obtained, sampling is entered with direct-reading spectrometer after stirring
Al, Si, Fe and Mn, Cr, Ti, V content in the quick analysis of row, detection solution；
Step 3: adding aluminium boron intermediate alloy, aluminium cerium mischmetal intermediate alloy in aluminium liquid after melting, heat preserving furnace aluminum liquid temperature is controlled
At 740 ± 10 DEG C, artificial stirring and electromagnetic agitation 20 minutes, obtain Al >=99.82wt% in alloy aluminium liquid, this alloy aluminium liquid,
Si≤0.04wt%、 Fe 0.08~0.12wt%、（Mn+Cr+Ti+V）0.01 ~ 0.05% wt% of wt%, Ce of ＜ 0.01, and make Fe/
Si≥2.0；
Step 4: completing after step 3, carrier is made with 99.996% high pure nitrogen when temperature of aluminum liquid reaches 750 ± 10 DEG C, will
Efficient injection refining agent is passed through in holding furnace to be refined in melt, reaches the purified treatments such as the degasification of alloy aluminium liquid, removal of impurities, described
Refining agent consumption is the 0.15% ~ 0.3% of furnace charge total amount, and refining agent, which enters stokehold, need to carry out preheating and drying；
Step 5: after the completion of step 4, aluminium liquid stands 5 ~ 10 minutes, opens holding furnace and skims and skimmed, clears up and float over conjunction
Aluminium slag on golden aluminium liquid surface；
Step 6: alloy aluminium liquid is sampled analysis after step 5 is removed the gred, if each component content deviates setting value,
Further add corresponding component so that Al >=99.82wt%, Si≤0.04wt%, Fe 0.08-0.12wt%,（Mn+Cr+Ti+
V）0.01 ~ 0.05% wt% of wt%, Ce of ＜ 0.01, and make Fe/ Si >=2.0；
Step 7: after step 6, aluminium liquid stands 30 ~ 40 minutes in holding furnace, when temperature reaches 740 ± 10 DEG C, comes out of the stove, aluminium liquid
Out enter online depassing unit and filter by chute from holding furnace, carry out external refining, degasification again removes the gred；
Step 8: the clean alloy aluminium liquid after being refined again to step 7 carries out direct casting, cast temperature is controlled 690 ~ 700
DEG C, cast using level casting mode, while according to the diameter range for drawing monofilament, controlling speed, the cooling of crystallizing wheel
Water pressure, it is 520 ~ 550 DEG C to make the strand temperature come out to from crystallizing wheel on access bridge；
Step 9: strand made from rapid eight is carried out into alignment, cooling, control the strand temperature into before rolling to be maintained at 470-490 DEG C, roll
Process processed is lubricated and cooled down to roll and aluminium bar using emulsion；Emulsion pressure and flow are adjusted, height is led aluminium bar whole
Roll temperature≤300 DEG C；
Step 10: the high conductivity aluminium bar come out with water or dilute emulsion to milling train quench-quick cooling treatment, control
Aluminium rod surface temperature≤60 DEG C；
Step 11: natural cooling obtains the high conductivity aluminium bar after aluminium bar cleaning.
Control refining agent is blown into when being refined in above-mentioned steps four speed and the pressure of nitrogen, make refining time control 15
~ 20 minutes, nitrogen pressure was controlled in 10 ~ 15KPa.
Aluminium boron intermediate alloy host element Boron contents are 4.5 ~ 5.5wt%, the aluminium cerium mischmetal intermediate alloy in above-mentioned steps three
Host element cerium content is 9 ~ 11 wt%.
The cast temperature of above-mentioned steps eight is controlled at 690 ~ 700 DEG C, and crystallization wheel speed is 1.4 ~ 1.8 revs/min, casts cooling water
Temperature is 25 ~ 35 DEG C, and the strand temperature on access bridge is 520 ~ 550 DEG C.
During using above-mentioned high-strength high temperature-resistant alloy wire, its aluminium cerium mischmetal alloy refinement tissue crystal grain and dendrite change
Si, Fe etc. form in melt, reduce needle-like crystalline substance, increase the roughening of globular crystal, effectively control rafifinal arborescent structure, improve height
The mechanical performance of fine aluminium, improves the tensile strength and elongation of aluminium conductor, and this two indexs are respectively reached：Tensile strength 110 ~
130 MPa, elongation >=6.5% meets duralumin bar requirement；Secondly, Al99.70 and Al99.85 remelted aluminum ingots are applied in combination,
The purity of aluminium and the electric property of aluminium bar are not only increased, and the performance of aluminium conductor holding duralumin can be made.Height leads aluminium bar（Diameter
For 9.5mm）Electrical performance indexes can respectively reach-（1）The n Ω .m of 20 DEG C of resistivity≤27.53（The % of conductance >=62.63
IACS）；（2）20 DEG C of resistivity：≤27.32 nΩ.m（The %IACS of conductance >=63.11）.
Aluminium bar of the present invention and its aluminum steel index and respective country standard index of correlation contrast table
Table 1
The testing result of embodiment is as shown in table 2：
Table 2
Using high-strength high temperature-resistant alloy wire, its aluminium cerium mischmetal alloy refinement tissue crystal grain and dendrite change Si, Fe in melt
Deng form, it is brilliant to reduce needle-like, increases the roughening of globular crystal, effectively control rafifinal arborescent structure, improves the machinery of rafifinal
Performance, improves the tensile strength and elongation of aluminium conductor, and this two indexs are respectively reached：The MPa of tensile strength 110 ~ 130, elongation
Rate >=6.5%, meets duralumin bar requirement；Secondly, Al99.70 and Al99.85 remelted aluminum ingots are applied in combination, aluminium is not only increased
Purity and aluminium bar electric property, and can make aluminium conductor keep duralumin performance.Height leads aluminium bar（A diameter of 9.5mm）Electricity
Performance indications can respectively reach-（1）The n Ω .m of 20 DEG C of resistivity≤27.53（The %IACS of conductance >=62.63）；（2）20 DEG C of electricity
Resistance rate：≤27.32 nΩ.m（The %IACS of conductance >=63.11）.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (3)
1. a kind of high-strength high temperature-resistant alloy wire, it is characterised in that：The high-strength high temperature-resistant alloy wire passes through following step
It is rapid to obtain：
Step 1: Al99.70 and Al99.85 remelted aluminum ingots are applied in combination, temperature of aluminum liquid in aluminium melting furnace melting, control stove is put into
≤ 760 DEG C, wherein Al99.70 aluminium ingots accounting is that 20 ~ 40%, Al99.85 aluminium ingots accounting is 60 ~ 80%；
Step 2: aluminium liquid metaideophone is to holding furnace after the melting that step one is obtained, sampling is entered with direct-reading spectrometer after stirring
Al, Si, Fe and Mn, Cr, Ti, V content in the quick analysis of row, detection solution；
Step 3: adding aluminium boron intermediate alloy, aluminium cerium mischmetal intermediate alloy in aluminium liquid after melting, heat preserving furnace aluminum liquid temperature is controlled
At 740 ± 10 DEG C, artificial stirring and electromagnetic agitation 20 minutes, obtain Al >=99.82wt% in alloy aluminium liquid, this alloy aluminium liquid,
Si≤0.04wt%、 Fe 0.08~0.12wt%、（Mn+Cr+Ti+V）0.01 ~ 0.05% wt% of wt%, Ce of ＜ 0.01, and make Fe/
Si≥2.0；
Step 4: completing after step 3, carrier is made with 99.996% high pure nitrogen when temperature of aluminum liquid reaches 750 ± 10 DEG C, will
Efficient injection refining agent is passed through in holding furnace to be refined in melt, reaches the purified treatments such as the degasification of alloy aluminium liquid, removal of impurities, described
Refining agent consumption is the 0.15% ~ 0.3% of furnace charge total amount, and refining agent, which enters stokehold, need to carry out preheating and drying；
Step 5: after the completion of step 4, aluminium liquid stands 5 ~ 10 minutes, opens holding furnace and skims and skimmed, clears up and float over conjunction
Aluminium slag on golden aluminium liquid surface；
Step 6: alloy aluminium liquid is sampled analysis after step 5 is removed the gred, if each component content deviates setting value,
Further add corresponding component so that Al >=99.82wt%, Si≤0.04wt%, Fe 0.08-0.12wt%,（Mn+Cr+Ti+
V）0.01 ~ 0.05% wt% of wt%, Ce of ＜ 0.01, and make Fe/ Si >=2.0；
Step 7: after step 6, aluminium liquid stands 30 ~ 40 minutes in holding furnace, when temperature reaches 740 ± 10 DEG C, comes out of the stove, aluminium liquid
Out enter online depassing unit and filter by chute from holding furnace, carry out external refining, degasification again removes the gred；
Step 8: the clean alloy aluminium liquid after being refined again to step 7 carries out direct casting, cast temperature is controlled 690 ~ 700
DEG C, cast using level casting mode, while according to the diameter range for drawing monofilament, controlling speed, the cooling of crystallizing wheel
Water pressure, it is 520 ~ 550 DEG C to make the strand temperature come out to from crystallizing wheel on access bridge；
Step 9: strand made from rapid eight is carried out into alignment, cooling, control the strand temperature into before rolling to be maintained at 470-490 DEG C, roll
Process processed is lubricated and cooled down to roll and aluminium bar using emulsion；Emulsion pressure and flow are adjusted, height is led aluminium bar whole
Roll temperature≤300 DEG C；
Step 10: the high conductivity aluminium bar come out with water or dilute emulsion to milling train quench-quick cooling treatment, control
Aluminium rod surface temperature≤60 DEG C；
Step 11: natural cooling obtains the high conductivity aluminium bar after aluminium bar cleaning.
2. the high-strength high temperature-resistant alloy wire according to right 1, it is characterised in that：Control essence when being refined in the step 4
Speed and the pressure of nitrogen that refining agent is blown into, make refining time control at 15 ~ 20 minutes, nitrogen pressure is controlled in 10 ~ 15KPa.
3. the high-strength high temperature-resistant alloy wire according to right 1, it is characterised in that：Closed in the step 3 in the middle of aluminium boron
Golden host element Boron contents are 4.5 ~ 5.5wt%, and the aluminium cerium mischmetal intermediate alloy host element cerium content is 9 ~ 11 wt%.
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| CN201710264368.2A CN107254608A (en) | 2015-05-13 | 2015-05-13 | High-strength high temperature-resistant alloy wire |
| CN201510240945.5A CN104862509B (en) | 2015-05-13 | 2015-05-13 | The preparation technology of overhead power transmission conducting wire high conductivity aluminium bar |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108374110A (en) * | 2018-03-26 | 2018-08-07 | 山东元旺电工科技有限公司 | A kind of round aluminum rod and its production technology |
| CN111349799A (en) * | 2018-12-24 | 2020-06-30 | 西南铝业（集团）有限责任公司 | Aluminum alloy ingot and preparation method thereof |
| CN111378849A (en) * | 2018-12-27 | 2020-07-07 | 南京理工大学 | Preparation method of industrial pure aluminum conductor |
| CN110093534A (en) * | 2019-05-17 | 2019-08-06 | 江苏亨通电力特种导线有限公司 | High conductivity heat-resisting aluminium alloy, preparation method and aerial condutor alloy aluminum lever |
| CN110819852A (en) * | 2019-10-30 | 2020-02-21 | 全球能源互联网研究院有限公司 | High-conductivity soft aluminum monofilament with good heat resistance and preparation method thereof |
| WO2023015608A1 (en) * | 2021-08-12 | 2023-02-16 | 江苏亨通电力特种导线有限公司 | High strength, high conductivity, intergranular corrosion-resistant aluminum alloy and preparation method therefor |
| CN114807621A (en) * | 2022-04-13 | 2022-07-29 | 宝武铝业科技有限公司 | Metal and method for removing vanadium element in primary aluminum molten aluminum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104862509A (en) | 2015-08-26 |
| CN107236874B (en) | 2019-03-12 |
| CN107236874A (en) | 2017-10-10 |
| CN104862509B (en) | 2018-02-06 |
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